| Fitchburg to Opwijk | 3,480.02 mi (5,600.54 km) |
| Fitchburg to Ostend | 3,422.43 mi (5,507.87 km) |
| Fitchburg to Oud-Heverlee | 3,503.00 mi (5,637.53 km) |
| Fitchburg to Oud-Turnhout | 3,503.08 mi (5,637.66 km) |
| Fitchburg to Oudenaarde | 3,459.42 mi (5,567.40 km) |
| Fitchburg to Oudenburg | 3,426.74 mi (5,514.80 km) |
| Fitchburg to Oupeye | 3,545.70 mi (5,706.25 km) |
| Fitchburg to Overijse | 3,498.92 mi (5,630.97 km) |
| Fitchburg to Overpelt | 3,523.04 mi (5,669.78 km) |
| Fitchburg to Paal | 3,517.95 mi (5,661.60 km) |
| Fitchburg to Peer | 3,526.74 mi (5,675.73 km) |
| Fitchburg to Pepinster | 3,556.53 mi (5,723.69 km) |
| Fitchburg to Peruwelz | 3,467.30 mi (5,580.09 km) |
| Fitchburg to Perwez | 3,514.52 mi (5,656.07 km) |
| Fitchburg to Philippeville | 3,515.04 mi (5,656.90 km) |
